Trolley-wheel.



J. W. ANDERSON.

TROLLEY WHEEL.

APPLICATION FILED APR. 5.1913.

@ Patented June 22, 1915.

J x w THE NORRIS PETERS 6 0.. PHOTO-LITHO. WASHINGTON. D. C. v

JOHN WILLIAM ANDERSON, 0F HAMILTON, ONTARIO, CANADA, ASSIGNOR, BY MESNEASSIGNMENTS, TO AMERICAN TROLLEY WHEEL COMPANY, INC., 0F BUFFALO, NEW

YORK, A CORPORATION OF NEW YORK.

TROLLEY-WHEEL.

Specification of Letters Patent.

Patented June 22, 11915.

Application filed April 5, 1913. Serial No. 759,112.

To all whom it may concern Be it known that I, JOH WILLIAM AN- DERSON,of the city of Hamilton, in the county of Ventworth, in the Province ofOntario, Canada, have invented certain new and useful Improvements inTrolley-Wheels, of which the following is the specification.

My invention relates to improvements in trolley wheels and is animprovement on a similar invention for which I have filed an applicationin the United States Patent Office on July 11th, 1912, under SerialNumber 7 08,903, and the object of the invention is to devise a trolleywheel of the self-oiling type, the oil being contained in hollow flangesof the wheel and said flanges being capable of revolving independentlyof the wheel portion.

A further object is to devise means for preventing the spreading of theflanges from the wheel portion while at the same time allowing theflanges to revolve independently of the wheel portion, and a stillfurther object is to provide means whereby a better contact will be madebetween the wheel and the harp of the trolley pole.

My invention consists of a grooved trolley wheel portion havingextending shanks formed thereon with circumferential grooves therein,and oil holes extending from the bottom of the grooves into the hollowinterior of the wheel portion, wheel flanges mounted on the said shanksand having oil holes in the surfaces thereof abutting the shanks, saidholes registering with the grooves therein, vents in the flanges for theinsertion of the oil, rings in the flanges, a hollow bushing having areduced central portion with oil holes extending into the interior andhaving an enlarged head, the other end being suitably threaded, saidbushing being adapted to be inserted into the interior of the wheel anda nut threaded onto the threaded end of the bushing whereby the wheelflanges are prevented from spreading away from the wheel portion, all ashereinafter more particularly described, and illustrated in theaccompanying drawing in which Figure 1 represents a side elevation of awheel constructed according to my invention showing the same applied tothe harp of the trolley pole. Fig. 2 is a cross-section thereof. Fig. 3is a vertical section through the wheel atright angles to Fig. 2. Fig. 1is a side vlew of the bushing showing the nut in section, and Fig. 5 isan end view thereof.

Like characters of reference indicate corresponding parts in thedifferent views.

1 is the trolley pole and 2 is the harp thereof.

3 is the wheel portion having the grooved periphery 4 and the shanks 5with circumferential grooves 6 therein.

7 are the oil holes extending through the same.

8 are the wheel flanges having the central bushings 9 with oil holes 10therethrough, said flanges being hollow and designed to constitute oilreservoirs.

11 are vents for the insertion of the oil into the flanges. The flangesare mounted on the shanks 5 and are provided in their interiors withloosely disposed rings 12.

13 is the bushing extending through the flanges and wheel portion andhaving the enlarged head 13* and the reduced central portion 14. withoil holes 15 extending into the interior of the bushing.

16 is the threaded end of the bushing and 17 is a nut threaded thereon.

18 are springs on the inner faces of the harp adapted to bear againstthe enlarged head 13 and the nut 17 of the bushing.

19 is the axle extending through the wheel whereby the same is mountedon the harp.

From the above description it will be seen that the bushing holds theportions of the wheel in position and prevents the spreading of theflanges away from the wheel portion while at the same time permittingthe flanges to revolve independently of the wheel portion. Also theenlarged head and nut of the bushing make a better contact with the harpsprings than the flush bushing shown and described in my formerapplication. Further the oil can work its way down and lubricate theaxle as well as the bearing sur faces of the wheel portion and flanges.

As many modifications can be made in the invention without departingfrom the spirit thereof or the scope of the claim the form shown is tobe taken in an illustrative and not in a limiting sense.

What I claim as my invention and desire to secure by Letters Patent, is

In a trolley wheel, the combination with a wheel-portion, of independenthollow Wheel shank portion encompassing said bushing, said bushinghaving a headed end and securing means on its opposite end, said headedand securing means connecting together said bushing and said tubularwheel shanlnportion.

In testimony whereof I have signed at Hamilton, in the county ofVVentworth, in the Province of Ontario, Canada, this 10th day of March1913.

JOHN WILLIAM ANDERSON.

In the presence of E. M. NEAME, R. M. FETHERSTONIIAUGH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). 0.

